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<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2010 Red Hat, Inc.</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * Red Hat licenses this file to you under the Apache License, version 2.0</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * (the "License"); you may not use this file except in compliance with the</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * License.  You may obtain a copy of the License at:</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *    <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * License for the specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> org.jboss.netty.example.http.websocket;
<a class="jxr_linenumber" name="17" href="#17">17</a>  
<a class="jxr_linenumber" name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.handler.codec.http.HttpHeaders.*;
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.handler.codec.http.HttpHeaders.Names.*;
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.handler.codec.http.HttpHeaders.Values.*;
<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.handler.codec.http.HttpMethod.*;
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.handler.codec.http.HttpResponseStatus.*;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.jboss.netty.handler.codec.http.HttpVersion.*;
<a class="jxr_linenumber" name="24" href="#24">24</a>  
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.security.MessageDigest;
<a class="jxr_linenumber" name="26" href="#26">26</a>  
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffer;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffers;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelFuture;
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelFutureListener;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelHandlerContext;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ChannelPipeline;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.ExceptionEvent;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.MessageEvent;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.channel.SimpleChannelUpstreamHandler;
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.DefaultHttpResponse;
<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpHeaders;
<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpRequest;
<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpResponse;
<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpResponseStatus;
<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpHeaders.Names;
<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.HttpHeaders.Values;
<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.websocket.DefaultWebSocketFrame;
<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.websocket.WebSocketFrame;
<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.websocket.WebSocketFrameDecoder;
<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.handler.codec.http.websocket.WebSocketFrameEncoder;
<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.util.CharsetUtil;
<a class="jxr_linenumber" name="48" href="#48">48</a>  
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://www.jboss.org/netty/" target="alexandria_uri">http://www.jboss.org/netty/</a>"&gt;The Netty Project&lt;/a&gt;</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment"> * @author &lt;a href="<a href="http://gleamynode.net/" target="alexandria_uri">http://gleamynode.net/</a>"&gt;Trustin Lee&lt;/a&gt;</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment"> * @version $Rev: 2314 $, $Date: 2010-06-22 16:02:27 +0900 (Tue, 22 Jun 2010) $</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/jboss/netty/example/http/websocket/WebSocketServerHandler.html">WebSocketServerHandler</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/jboss/netty/channel/SimpleChannelUpstreamHandler.html">SimpleChannelUpstreamHandler</a> {
<a class="jxr_linenumber" name="56" href="#56">56</a>  
<a class="jxr_linenumber" name="57" href="#57">57</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String WEBSOCKET_PATH = <span class="jxr_string">"/websocket"</span>;
<a class="jxr_linenumber" name="58" href="#58">58</a>  
<a class="jxr_linenumber" name="59" href="#59">59</a>      @Override
<a class="jxr_linenumber" name="60" href="#60">60</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> messageReceived(<a href="../../../../../../org/jboss/netty/channel/ChannelHandlerContext.html">ChannelHandlerContext</a> ctx, <a href="../../../../../../org/jboss/netty/channel/MessageEvent.html">MessageEvent</a> e) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="61" href="#61">61</a>          Object msg = e.getMessage();
<a class="jxr_linenumber" name="62" href="#62">62</a>          <strong class="jxr_keyword">if</strong> (msg instanceof HttpRequest) {
<a class="jxr_linenumber" name="63" href="#63">63</a>              handleHttpRequest(ctx, (HttpRequest) msg);
<a class="jxr_linenumber" name="64" href="#64">64</a>          } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (msg instanceof WebSocketFrame) {
<a class="jxr_linenumber" name="65" href="#65">65</a>              handleWebSocketFrame(ctx, (WebSocketFrame) msg);
<a class="jxr_linenumber" name="66" href="#66">66</a>          }
<a class="jxr_linenumber" name="67" href="#67">67</a>      }
<a class="jxr_linenumber" name="68" href="#68">68</a>  
<a class="jxr_linenumber" name="69" href="#69">69</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> handleHttpRequest(<a href="../../../../../../org/jboss/netty/channel/ChannelHandlerContext.html">ChannelHandlerContext</a> ctx, <a href="../../../../../../org/jboss/netty/handler/codec/http/HttpRequest.html">HttpRequest</a> req) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="70" href="#70">70</a>          <em class="jxr_comment">// Allow only GET methods.</em>
<a class="jxr_linenumber" name="71" href="#71">71</a>          <strong class="jxr_keyword">if</strong> (req.getMethod() != GET) {
<a class="jxr_linenumber" name="72" href="#72">72</a>              sendHttpResponse(
<a class="jxr_linenumber" name="73" href="#73">73</a>                      ctx, req, <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/DefaultHttpResponse.html">DefaultHttpResponse</a>(HTTP_1_1, FORBIDDEN));
<a class="jxr_linenumber" name="74" href="#74">74</a>              <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="75" href="#75">75</a>          }
<a class="jxr_linenumber" name="76" href="#76">76</a>  
<a class="jxr_linenumber" name="77" href="#77">77</a>          <em class="jxr_comment">// Send the demo page.</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>          <strong class="jxr_keyword">if</strong> (req.getUri().equals(<span class="jxr_string">"/"</span>)) {
<a class="jxr_linenumber" name="79" href="#79">79</a>              <a href="../../../../../../org/jboss/netty/handler/codec/http/HttpResponse.html">HttpResponse</a> res = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/DefaultHttpResponse.html">DefaultHttpResponse</a>(HTTP_1_1, OK);
<a class="jxr_linenumber" name="80" href="#80">80</a>  
<a class="jxr_linenumber" name="81" href="#81">81</a>              <a href="../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> content =
<a class="jxr_linenumber" name="82" href="#82">82</a>                  WebSocketServerIndexPage.getContent(getWebSocketLocation(req));
<a class="jxr_linenumber" name="83" href="#83">83</a>  
<a class="jxr_linenumber" name="84" href="#84">84</a>              res.setHeader(CONTENT_TYPE, <span class="jxr_string">"text/html; charset=UTF-8"</span>);
<a class="jxr_linenumber" name="85" href="#85">85</a>              setContentLength(res, content.readableBytes());
<a class="jxr_linenumber" name="86" href="#86">86</a>  
<a class="jxr_linenumber" name="87" href="#87">87</a>              res.setContent(content);
<a class="jxr_linenumber" name="88" href="#88">88</a>              sendHttpResponse(ctx, req, res);
<a class="jxr_linenumber" name="89" href="#89">89</a>              <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="90" href="#90">90</a>          }
<a class="jxr_linenumber" name="91" href="#91">91</a>  
<a class="jxr_linenumber" name="92" href="#92">92</a>          <em class="jxr_comment">// Serve the WebSocket handshake request.</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>          <strong class="jxr_keyword">if</strong> (req.getUri().equals(WEBSOCKET_PATH) &amp;&amp;
<a class="jxr_linenumber" name="94" href="#94">94</a>              Values.UPGRADE.equalsIgnoreCase(req.getHeader(CONNECTION)) &amp;&amp;
<a class="jxr_linenumber" name="95" href="#95">95</a>              WEBSOCKET.equalsIgnoreCase(req.getHeader(Names.UPGRADE))) {
<a class="jxr_linenumber" name="96" href="#96">96</a>  
<a class="jxr_linenumber" name="97" href="#97">97</a>              <em class="jxr_comment">// Create the WebSocket handshake response.</em>
<a class="jxr_linenumber" name="98" href="#98">98</a>              <a href="../../../../../../org/jboss/netty/handler/codec/http/HttpResponse.html">HttpResponse</a> res = <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/DefaultHttpResponse.html">DefaultHttpResponse</a>(
<a class="jxr_linenumber" name="99" href="#99">99</a>                      HTTP_1_1,
<a class="jxr_linenumber" name="100" href="#100">100</a>                     <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/HttpResponseStatus.html">HttpResponseStatus</a>(101, <span class="jxr_string">"Web Socket Protocol Handshake"</span>));
<a class="jxr_linenumber" name="101" href="#101">101</a>             res.addHeader(Names.UPGRADE, WEBSOCKET);
<a class="jxr_linenumber" name="102" href="#102">102</a>             res.addHeader(CONNECTION, Values.UPGRADE);
<a class="jxr_linenumber" name="103" href="#103">103</a> 
<a class="jxr_linenumber" name="104" href="#104">104</a>             <em class="jxr_comment">// Fill in the headers and contents depending on handshake method.</em>
<a class="jxr_linenumber" name="105" href="#105">105</a>             <strong class="jxr_keyword">if</strong> (req.containsHeader(SEC_WEBSOCKET_KEY1) &amp;&amp;
<a class="jxr_linenumber" name="106" href="#106">106</a>                 req.containsHeader(SEC_WEBSOCKET_KEY2)) {
<a class="jxr_linenumber" name="107" href="#107">107</a>                 <em class="jxr_comment">// New handshake method with a challenge:</em>
<a class="jxr_linenumber" name="108" href="#108">108</a>                 res.addHeader(SEC_WEBSOCKET_ORIGIN, req.getHeader(ORIGIN));
<a class="jxr_linenumber" name="109" href="#109">109</a>                 res.addHeader(SEC_WEBSOCKET_LOCATION, getWebSocketLocation(req));
<a class="jxr_linenumber" name="110" href="#110">110</a>                 String protocol = req.getHeader(SEC_WEBSOCKET_PROTOCOL);
<a class="jxr_linenumber" name="111" href="#111">111</a>                 <strong class="jxr_keyword">if</strong> (protocol != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="112" href="#112">112</a>                     res.addHeader(SEC_WEBSOCKET_PROTOCOL, protocol);
<a class="jxr_linenumber" name="113" href="#113">113</a>                 }
<a class="jxr_linenumber" name="114" href="#114">114</a> 
<a class="jxr_linenumber" name="115" href="#115">115</a>                 <em class="jxr_comment">// Calculate the answer of the challenge.</em>
<a class="jxr_linenumber" name="116" href="#116">116</a>                 String key1 = req.getHeader(SEC_WEBSOCKET_KEY1);
<a class="jxr_linenumber" name="117" href="#117">117</a>                 String key2 = req.getHeader(SEC_WEBSOCKET_KEY2);
<a class="jxr_linenumber" name="118" href="#118">118</a>                 <strong class="jxr_keyword">int</strong> a = (<strong class="jxr_keyword">int</strong>) (Long.parseLong(key1.replaceAll(<span class="jxr_string">"[^0-9]"</span>, <span class="jxr_string">""</span>)) / key1.replaceAll(<span class="jxr_string">"[^ ]"</span>, <span class="jxr_string">""</span>).length());
<a class="jxr_linenumber" name="119" href="#119">119</a>                 <strong class="jxr_keyword">int</strong> b = (<strong class="jxr_keyword">int</strong>) (Long.parseLong(key2.replaceAll(<span class="jxr_string">"[^0-9]"</span>, <span class="jxr_string">""</span>)) / key2.replaceAll(<span class="jxr_string">"[^ ]"</span>, <span class="jxr_string">""</span>).length());
<a class="jxr_linenumber" name="120" href="#120">120</a>                 <strong class="jxr_keyword">long</strong> c = req.getContent().readLong();
<a class="jxr_linenumber" name="121" href="#121">121</a>                 <a href="../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> input = ChannelBuffers.buffer(16);
<a class="jxr_linenumber" name="122" href="#122">122</a>                 input.writeInt(a);
<a class="jxr_linenumber" name="123" href="#123">123</a>                 input.writeInt(b);
<a class="jxr_linenumber" name="124" href="#124">124</a>                 input.writeLong(c);
<a class="jxr_linenumber" name="125" href="#125">125</a>                 <a href="../../../../../../org/jboss/netty/buffer/ChannelBuffer.html">ChannelBuffer</a> output = ChannelBuffers.wrappedBuffer(
<a class="jxr_linenumber" name="126" href="#126">126</a>                         MessageDigest.getInstance(<span class="jxr_string">"MD5"</span>).digest(input.array()));
<a class="jxr_linenumber" name="127" href="#127">127</a>                 res.setContent(output);
<a class="jxr_linenumber" name="128" href="#128">128</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="129" href="#129">129</a>                 <em class="jxr_comment">// Old handshake method with no challenge:</em>
<a class="jxr_linenumber" name="130" href="#130">130</a>                 res.addHeader(WEBSOCKET_ORIGIN, req.getHeader(ORIGIN));
<a class="jxr_linenumber" name="131" href="#131">131</a>                 res.addHeader(WEBSOCKET_LOCATION, getWebSocketLocation(req));
<a class="jxr_linenumber" name="132" href="#132">132</a>                 String protocol = req.getHeader(WEBSOCKET_PROTOCOL);
<a class="jxr_linenumber" name="133" href="#133">133</a>                 <strong class="jxr_keyword">if</strong> (protocol != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="134" href="#134">134</a>                     res.addHeader(WEBSOCKET_PROTOCOL, protocol);
<a class="jxr_linenumber" name="135" href="#135">135</a>                 }
<a class="jxr_linenumber" name="136" href="#136">136</a>             }
<a class="jxr_linenumber" name="137" href="#137">137</a> 
<a class="jxr_linenumber" name="138" href="#138">138</a>             <em class="jxr_comment">// Upgrade the connection and send the handshake response.</em>
<a class="jxr_linenumber" name="139" href="#139">139</a>             <a href="../../../../../../org/jboss/netty/channel/ChannelPipeline.html">ChannelPipeline</a> p = ctx.getChannel().getPipeline();
<a class="jxr_linenumber" name="140" href="#140">140</a>             p.remove(<span class="jxr_string">"aggregator"</span>);
<a class="jxr_linenumber" name="141" href="#141">141</a>             p.replace(<span class="jxr_string">"decoder"</span>, <span class="jxr_string">"wsdecoder"</span>, <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/websocket/WebSocketFrameDecoder.html">WebSocketFrameDecoder</a>());
<a class="jxr_linenumber" name="142" href="#142">142</a> 
<a class="jxr_linenumber" name="143" href="#143">143</a>             ctx.getChannel().write(res);
<a class="jxr_linenumber" name="144" href="#144">144</a> 
<a class="jxr_linenumber" name="145" href="#145">145</a>             p.replace(<span class="jxr_string">"encoder"</span>, <span class="jxr_string">"wsencoder"</span>, <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/websocket/WebSocketFrameEncoder.html">WebSocketFrameEncoder</a>());
<a class="jxr_linenumber" name="146" href="#146">146</a>             <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="147" href="#147">147</a>         }
<a class="jxr_linenumber" name="148" href="#148">148</a> 
<a class="jxr_linenumber" name="149" href="#149">149</a>         <em class="jxr_comment">// Send an error page otherwise.</em>
<a class="jxr_linenumber" name="150" href="#150">150</a>         sendHttpResponse(
<a class="jxr_linenumber" name="151" href="#151">151</a>                 ctx, req, <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/DefaultHttpResponse.html">DefaultHttpResponse</a>(HTTP_1_1, FORBIDDEN));
<a class="jxr_linenumber" name="152" href="#152">152</a>     }
<a class="jxr_linenumber" name="153" href="#153">153</a> 
<a class="jxr_linenumber" name="154" href="#154">154</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> handleWebSocketFrame(<a href="../../../../../../org/jboss/netty/channel/ChannelHandlerContext.html">ChannelHandlerContext</a> ctx, <a href="../../../../../../org/jboss/netty/handler/codec/http/websocket/WebSocketFrame.html">WebSocketFrame</a> frame) {
<a class="jxr_linenumber" name="155" href="#155">155</a>         <em class="jxr_comment">// Send the uppercased string back.</em>
<a class="jxr_linenumber" name="156" href="#156">156</a>         ctx.getChannel().write(
<a class="jxr_linenumber" name="157" href="#157">157</a>                 <strong class="jxr_keyword">new</strong> <a href="../../../../../../org/jboss/netty/handler/codec/http/websocket/DefaultWebSocketFrame.html">DefaultWebSocketFrame</a>(frame.getTextData().toUpperCase()));
<a class="jxr_linenumber" name="158" href="#158">158</a>     }
<a class="jxr_linenumber" name="159" href="#159">159</a> 
<a class="jxr_linenumber" name="160" href="#160">160</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> sendHttpResponse(<a href="../../../../../../org/jboss/netty/channel/ChannelHandlerContext.html">ChannelHandlerContext</a> ctx, <a href="../../../../../../org/jboss/netty/handler/codec/http/HttpRequest.html">HttpRequest</a> req, <a href="../../../../../../org/jboss/netty/handler/codec/http/HttpResponse.html">HttpResponse</a> res) {
<a class="jxr_linenumber" name="161" href="#161">161</a>         <em class="jxr_comment">// Generate an error page if response status code is not OK (200).</em>
<a class="jxr_linenumber" name="162" href="#162">162</a>         <strong class="jxr_keyword">if</strong> (res.getStatus().getCode() != 200) {
<a class="jxr_linenumber" name="163" href="#163">163</a>             res.setContent(
<a class="jxr_linenumber" name="164" href="#164">164</a>                     ChannelBuffers.copiedBuffer(
<a class="jxr_linenumber" name="165" href="#165">165</a>                             res.getStatus().toString(), CharsetUtil.UTF_8));
<a class="jxr_linenumber" name="166" href="#166">166</a>             setContentLength(res, res.getContent().readableBytes());
<a class="jxr_linenumber" name="167" href="#167">167</a>         }
<a class="jxr_linenumber" name="168" href="#168">168</a> 
<a class="jxr_linenumber" name="169" href="#169">169</a>         <em class="jxr_comment">// Send the response and close the connection if necessary.</em>
<a class="jxr_linenumber" name="170" href="#170">170</a>         <a href="../../../../../../org/jboss/netty/channel/ChannelFuture.html">ChannelFuture</a> f = ctx.getChannel().write(res);
<a class="jxr_linenumber" name="171" href="#171">171</a>         <strong class="jxr_keyword">if</strong> (!isKeepAlive(req) || res.getStatus().getCode() != 200) {
<a class="jxr_linenumber" name="172" href="#172">172</a>             f.addListener(ChannelFutureListener.CLOSE);
<a class="jxr_linenumber" name="173" href="#173">173</a>         }
<a class="jxr_linenumber" name="174" href="#174">174</a>     }
<a class="jxr_linenumber" name="175" href="#175">175</a> 
<a class="jxr_linenumber" name="176" href="#176">176</a>     @Override
<a class="jxr_linenumber" name="177" href="#177">177</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> exceptionCaught(<a href="../../../../../../org/jboss/netty/channel/ChannelHandlerContext.html">ChannelHandlerContext</a> ctx, <a href="../../../../../../org/jboss/netty/channel/ExceptionEvent.html">ExceptionEvent</a> e)
<a class="jxr_linenumber" name="178" href="#178">178</a>             <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="179" href="#179">179</a>         e.getCause().printStackTrace();
<a class="jxr_linenumber" name="180" href="#180">180</a>         e.getChannel().close();
<a class="jxr_linenumber" name="181" href="#181">181</a>     }
<a class="jxr_linenumber" name="182" href="#182">182</a> 
<a class="jxr_linenumber" name="183" href="#183">183</a>     <strong class="jxr_keyword">private</strong> String getWebSocketLocation(<a href="../../../../../../org/jboss/netty/handler/codec/http/HttpRequest.html">HttpRequest</a> req) {
<a class="jxr_linenumber" name="184" href="#184">184</a>         <strong class="jxr_keyword">return</strong> <span class="jxr_string">"ws://"</span> + req.getHeader(HttpHeaders.Names.HOST) + WEBSOCKET_PATH;
<a class="jxr_linenumber" name="185" href="#185">185</a>     }
<a class="jxr_linenumber" name="186" href="#186">186</a> }
</pre>
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